Overhead projector



FIG. 1 is a top and left front perspective view of an overhead projector showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

The broken-line showings of a projector head in FIGS. 1-4 are environmental only and form no part of the claimed design. 

The ornamental design for an overhead projector, as shown and described. 